Discharging valve device for a compressor

Fluid handling – Line condition change responsive valves – Direct response valves

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F16K 1514

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045806047

ABSTRACT:
A discharging valve device for a compressor discharges gas compressed in a compression chamber outside said chamber against an urging force of a discharging valve to a valve seat and resistance of breaking a film of a lubricating oil deposited at and near a cacting area formed between the valve seat and the discharging valve. The discharging valve device comprises a discharging port communicated with a compression chamber, a valve seat formed at the peripheral portion of said discharging port and having a curvature in cross section, and a discharging valve which is forcibly in contact with a part of said valve seat so as to open and close said discharging port depending on pressure in said compression chamber, wherein a contacting width of the sealing part formed by the contact through an oil film between said discharging valve and said valve seat is smaller than a contacting width of an oil film formed in case of combination of a flat discharging valve with a valve seat having a uniform curvature in cross section.

REFERENCES:
patent: 73038 (1868-01-01), Pollard
patent: 338609 (1886-03-01), Nysewander
patent: 3606588 (1969-04-01), Romerhaus
Proceedings of the 1982 Purdue Compressor Technology Conference (Jul. 21-23, 1982), pp. 149-158.

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